CN108152125A - A kind of secondary small line terminal strength testing tool of electric system - Google Patents
A kind of secondary small line terminal strength testing tool of electric system Download PDFInfo
- Publication number
- CN108152125A CN108152125A CN201810233125.7A CN201810233125A CN108152125A CN 108152125 A CN108152125 A CN 108152125A CN 201810233125 A CN201810233125 A CN 201810233125A CN 108152125 A CN108152125 A CN 108152125A
- Authority
- CN
- China
- Prior art keywords
- pulling force
- small line
- force sensor
- secondary small
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
The invention discloses a kind of secondary small line terminal strength testing tools of electric system, and including spring shrapnel and handle, the spring shrapnel is equipped with the clamping part for clamping secondary small line；The pulling force sensor of the built-in connection spring shrapnel of the handle and the microcontroller of the connection pulling force sensor, the microcontroller connection buzzer and alarm lamp；The value of thrust that the microcontroller measures the pulling force sensor and pulling force threshold value comparison, and when the value of thrust that the pulling force sensor measures is more than pulling force threshold value, flickers the alarm lamp, the buzzer is made to send out prompt tone.It has the technical effect that：It can realize the standardization of secondary small line terminal strength test, overcome the difference of personal size firmly, prevent firmly too small possible inspection from not measuring inept wiring, cause to judge the inept situation of wiring by accident prevented also from firmly excessive.
Description
Technical field
The present invention relates to a kind of secondary small line terminal strength testing tools of electric system.
Background technology
In recent years, with the fast development of real estate, a large amount of residential areas created and commercial center are had every year
Completion, matched distribution transforming power station are also accordingly come into operation, and from design, construction to putting into operation, building time is short for new substation,
The degree of automation requirement is high, and the quality of construction directly influences stability and the safety of power supply.To ensure the safety of substation
Operation, each substation has thousands of up to ten thousand for being remotely controlled, telemetering, remote signalling or communication secondary small line be linked into relay protection
Equipment and monitoring system of electric substation, the wiring quality of these secondary small lines, can by the safety for directly influencing entire electric power system
It leans on.Current secondary small ray examination purely by checking by hand, and not only labor intensive is serious, with the miniaturization of equipment, small line
Density it is higher and higher, the inspection work of small line can not have been completed by hand.
Due to the self-skill of construction personnel, the difference of working experience, it is difficult to ensure that up to ten thousand for being remotely controlled, telemetering,
The secondary small line of remote signalling or communication can complete wiring by unified standard requirement.To improve working efficiency, the period is checked and accepted in reduction,
In a short period of time, it how quickly, conveniently and effectively to detect the wiring quality of above-mentioned secondary small line, is put in power transformation
The a difficult problem stood in face of inspector.
It is usually strong to detect secondary small line wiring using conventional nipper plier when engineers and technicians test at the scene
Degree, although this mode is simple, the size that everyone exerts oneself is calculated without standard measure, during atual detection, firmly too small
May inspection do not measure the situation of wiring loosely, firmly excessive was perhaps the line that connects originally to pulling out.
Invention content
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of secondary small line terminal strength of electric system
Testing tool can realize the standardization of secondary small line terminal strength test, overcome the difference of personal size firmly, prevent
Firmly too small may examine does not measure inept wiring, causes to judge the inept feelings of wiring by accident prevented also from firmly excessive
Condition.
Realizing a kind of technical solution of above-mentioned purpose is：A kind of secondary small line terminal strength testing tool of electric system, packet
Spring shrapnel and handle are included, the spring shrapnel is equipped with the clamping part for clamping secondary small line；
The pulling force sensor of the built-in connection spring shrapnel of the handle and the monolithic of the connection pulling force sensor
Machine, the microcontroller connection buzzer and alarm lamp；
The value of thrust that the microcontroller measures the pulling force sensor and pulling force threshold value comparison, and in the pull sensing
When the value of thrust that device measures is more than pulling force threshold value, the alarm lamp is flickered, the buzzer is made to send out prompt tone.
Further, A/D conversion circuits are equipped between the pulling force sensor and the microcontroller.
Further, the output terminal of the pulling force sensor is equipped with amplifier, and the amplifier connects the A/D conversions
Circuit.
Further, the microcontroller and the A/D conversion circuits are respectively positioned in one piece of monolithic mainboard.
Further, physical button for being set to pulling force threshold value is additionally provided on the microcontroller and for showing
The liquid crystal display of pulling force threshold value.
Further, the spring shrapnel includes handle and handle attachment part, the handle and the handle attachment part it
Between be pivotally connected by spring shaft, the front end of the handle and the handle attachment part forms the clamping part, and the handle connects
The rear end of socket part is equipped with the connecting rod for being inserted into the handle, and the pulling force sensor is socketed in the connecting rod.
Further, the secondary small line terminal strength testing tool of the electric system, further include the connection microcontroller and
The battery of the pulling force sensor.
Further, the secondary small line terminal strength testing tool of the electric system further includes and connects filling for the battery
Electrical interface, power switch and power supply indicator.
A kind of technical solution of the secondary small line terminal strength testing tool of electric system of the present invention is employed, including spring
Shrapnel and handle, the spring shrapnel are equipped with the clamping part for clamping secondary small line；The built-in connection spring of the handle
The pulling force sensor of shrapnel and the microcontroller of the connection pulling force sensor, the microcontroller connection buzzer and alarm lamp；
The value of thrust that the microcontroller measures the pulling force sensor and pulling force threshold value comparison, and measured in the pulling force sensor
When value of thrust is more than pulling force threshold value, the alarm lamp is flickered, the buzzer is made to send out prompt tone.It has the technical effect that：Its
Can realize the standardization of secondary small line terminal strength test, overcome the difference of personal size firmly, prevent it is firmly too small can
It can examine and not measure inept wiring, cause to judge the inept situation of wiring by accident prevented also from firmly excessive.
Description of the drawings
Fig. 1 is a kind of structure diagram of the secondary small line terminal strength testing tool of electric system of the present invention.
Specific embodiment
Referring to Fig. 1, the present inventor in order to preferably understand technical scheme of the present invention, is led to below
Specifically embodiment is crossed, and is described in detail with reference to attached drawing：
Referring to Fig. 1, a kind of secondary small line terminal strength testing tool of electric system of the present invention includes 1 He of spring shrapnel
Handle 2.
Spring shrapnel 1 includes handle 12 and handle attachment part 11, passes through spring shaft between handle 12 and handle attachment part 11
13 are pivotally connected.The front end of handle 12 and handle attachment part 11 forms to clamp the secondary small line 91 being located in terminal block 9
Clamping part 14, secondary small line include at least communication line, telemetering line, remote line, remote signalling line.The rear end of handle attachment part 11, which is equipped with, inserts
Enter the connecting rod 15 of handle 2.After tested secondary small line 91 is clamped in clamping part 14, following handle 12, clamping part 14 need to be unclamped
After the relieving of handle 12, clamp tested secondary small line 91, pull handle 2 measures the size of pulling force.
Pulling force sensor 3 and monolithic mainboard 4 are equipped in handle 2.The company of spring shrapnel 1 is socketed on pulling force sensor 3
On extension bar 15.Monolithic mainboard 4 is equipped with monolithic mainboard mounting hole 49, for monolithic mainboard 4 to be fixed in handle 2.
A/D conversion circuits 41, microcontroller 42, buzzer 43, power supply indicator 44, alarm lamp 45, power supply are additionally provided in monolithic mainboard 4
Switch 46 and charging interface 47.2 internal battery 5 of handle.
Pulling force sensor 3 is a kind of active sensor, and operation principle is to be produced after being based on resistance material stress on its surface
The various mechanical quantities that clamping part 14 pulls secondary small line to generate are converted to the knot of analog voltage signal by the piezoelectric effect of raw charge
Configuration sensor, i.e. resistance strain sensor, the range of pulling force sensor 3 is 5kg selected in the present embodiment, and precision is
0.01%, meet required precision.The model RL-L2 pulling force sensors of pulling force sensor 3.
Mechanical strain signal is converted to analog voltage signal by the resistance strain gage for being built in pulling force sensor 3, due to electricity
It hinders foil gauge dependent variable and corresponding resistor variation is general all very small, it is difficult to it is directly accurate to measure, and inconvenient processing, therefore, draw
Force snesor 3 employs conversion circuit and the variation of resistance strain gage is converted into analog voltage signal.But due to analog voltage
Amplitude is smaller, and the output terminal of pulling force sensor 3 is equipped with amplifier (being display in figure), and analog voltage signal is amplified.
Pulling force sensor 3 connects A/D conversion circuits 41 by amplifier, and A/D conversion circuits 41 connect microcontroller 42.
A/D conversion circuits 41 use 24 A/D conversion chips, and regulated power supply, the oscillation of piece internal clock are integrated in the chip
Device, all control signals are driven by pin, are configured without the register to chip interior, dc measuring bridge signal will not
It is influenced by the distributed inductance and capacitance of each element and conducting wire, strong antijamming capability.
From the memory of microcontroller 42, rate, versatility, price etc. consideration, the present invention uses ST89C52 chips,
It is a low-power consumption, high performance microcontroller, compatible MCS-51 standards and 80C51 pin configurations, is integrated with general 8 centres
Manage device and ISP Flash storages.
Liquid crystal display and physical button are additionally provided on microcontroller 42, physical button is used for being stored in ISP Flash storages
Pulling force threshold value set, liquid crystal display be used for show ISP Flash storage in pulling force threshold value.
Buzzer 43 and alarm lamp 45 are all connected with microcontroller 42, and microcontroller 42 detects spring shrapnel 1 in pulling force sensor 3
Pulling force be more than pulling force threshold value when, the testing result of pulling force sensor 3 is responded, buzzer 43 and alarm lamp 45 are opened simultaneously
It opens, buzzer 43 sends out prompt tone, and alarm lamp 45 flickers, and confirms that secondary small line terminal strength meets intensity requirement.If pulling force
Sensor 3 detects that the pulling force of spring shrapnel 1 is less than or equal to pulling force threshold value, and secondary small line is drawn out, then judges secondary small line
Terminal strength it is unqualified.
Battery 5 connects microcontroller 42 and pulling force sensor 3, and power supply is provided for microcontroller 42 and the work of pulling force sensor 3.
Power supply indicator 44, power switch 46 and charging interface 47 are all connected with battery 5, and wherein power supply indicator 44 is used to examine
Battery powered break-make is surveyed, power switch 46 is used to be turned on and off power supply of the battery 5 to microcontroller 42 and pulling force sensor 3.
Charging interface 47 is used to charge to battery 5.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will be all fallen in the range of claims of the present invention.
Claims (8)
1. a kind of secondary small line terminal strength testing tool of electric system, including spring shrapnel and handle, it is characterised in that：It is described
Spring shrapnel is equipped with the clamping part for clamping secondary small line；
The pulling force sensor of the built-in connection spring shrapnel of the handle and the microcontroller of the connection pulling force sensor,
The microcontroller connection buzzer and alarm lamp；
The value of thrust that the microcontroller measures the pulling force sensor and pulling force threshold value comparison, and surveyed in the pulling force sensor
When the value of thrust obtained is more than pulling force threshold value, the alarm lamp is flickered, the buzzer is made to send out prompt tone.
2. a kind of secondary small line terminal strength testing tool of electric system according to claim 1, it is characterised in that：It is described
A/D conversion circuits are equipped between pulling force sensor and the microcontroller.
3. a kind of secondary small line terminal strength testing tool of electric system according to claim 2, it is characterised in that：It is described
The output terminal of pulling force sensor is equipped with amplifier, and the amplifier connects the A/D conversion circuits.
4. a kind of secondary small line terminal strength testing tool of electric system according to claim 2, it is characterised in that：It is described
Microcontroller and the A/D conversion circuits are respectively positioned in one piece of monolithic mainboard.
5. a kind of secondary small line terminal strength testing tool of electric system according to claim 1, it is characterised in that：It is described
The physical button for being set to pulling force threshold value and the liquid crystal display for showing pulling force threshold value are additionally provided on microcontroller.
6. a kind of secondary small line terminal strength testing tool of electric system according to claim 1, it is characterised in that：It is described
Spring shrapnel includes handle and handle attachment part, is pivotally connected between the handle and the handle attachment part by spring shaft,
The front end of the handle and the handle attachment part forms the clamping part, and the rear end of the handle attachment part is equipped with described in insertion
The connecting rod of handle, the pulling force sensor are socketed in the connecting rod.
7. a kind of secondary small line terminal strength testing tool of electric system according to claim 1, it is characterised in that：It is also
Battery including connecting the microcontroller and the pulling force sensor.
8. a kind of secondary small line terminal strength testing tool of electric system according to claim 7, it is characterised in that：It is also
Charging interface, power switch and power supply indicator including connecting the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233125.7A CN108152125A (en) | 2018-03-21 | 2018-03-21 | A kind of secondary small line terminal strength testing tool of electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233125.7A CN108152125A (en) | 2018-03-21 | 2018-03-21 | A kind of secondary small line terminal strength testing tool of electric system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108152125A true CN108152125A (en) | 2018-06-12 |
Family
ID=62456231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810233125.7A Pending CN108152125A (en) | 2018-03-21 | 2018-03-21 | A kind of secondary small line terminal strength testing tool of electric system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108152125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088523A (en) * | 2021-11-17 | 2022-02-25 | 广东溢达纺织有限公司 | Brute force value monitoring system, brute force value monitoring method, brute force value monitoring device and computer equipment |
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| US5487308A (en) * | 1994-01-13 | 1996-01-30 | Ethicon Inc | Needle and suture automatic pull-test system |
| CN2299402Y (en) * | 1997-04-20 | 1998-12-02 | 刘志平 | Rat clip type wiring clip |
| CN201116915Y (en) * | 2007-09-13 | 2008-09-17 | 辽宁省建设科学研究院 | Wall single-brick pulling instrument |
| CN103226081A (en) * | 2013-04-08 | 2013-07-31 | 西安理工大学 | True triaxial apparatus of unsaturated soil |
| CN103411832A (en) * | 2013-08-20 | 2013-11-27 | 国家电网公司 | Testing device for maximal concentrated load of cable bracket and use method of testing device |
| CN203758658U (en) * | 2014-03-06 | 2014-08-06 | 西安工程大学 | Transmission line mechanics monitoring digit sensor |
| CN104095670A (en) * | 2014-07-14 | 2014-10-15 | 华侨大学 | Surgical operating clamp forceps with strain type force measurement and tissue clamp injury alarm functions |
| CN204765757U (en) * | 2015-04-28 | 2015-11-18 | 温州芳植生物科技有限公司 | Surgery retractor for thoracic surgery |
| CN107167269A (en) * | 2017-06-01 | 2017-09-15 | 陈畅 | A kind of strain-type electronic dynamometer |
| CN208091808U (en) * | 2018-03-21 | 2018-11-13 | 国网上海市电力公司 | A kind of secondary small line terminal strength testing tool of electric system |
-
2018
- 2018-03-21 CN CN201810233125.7A patent/CN108152125A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5487308A (en) * | 1994-01-13 | 1996-01-30 | Ethicon Inc | Needle and suture automatic pull-test system |
| CN2299402Y (en) * | 1997-04-20 | 1998-12-02 | 刘志平 | Rat clip type wiring clip |
| CN201116915Y (en) * | 2007-09-13 | 2008-09-17 | 辽宁省建设科学研究院 | Wall single-brick pulling instrument |
| CN103226081A (en) * | 2013-04-08 | 2013-07-31 | 西安理工大学 | True triaxial apparatus of unsaturated soil |
| CN103411832A (en) * | 2013-08-20 | 2013-11-27 | 国家电网公司 | Testing device for maximal concentrated load of cable bracket and use method of testing device |
| CN203758658U (en) * | 2014-03-06 | 2014-08-06 | 西安工程大学 | Transmission line mechanics monitoring digit sensor |
| CN104095670A (en) * | 2014-07-14 | 2014-10-15 | 华侨大学 | Surgical operating clamp forceps with strain type force measurement and tissue clamp injury alarm functions |
| CN204765757U (en) * | 2015-04-28 | 2015-11-18 | 温州芳植生物科技有限公司 | Surgery retractor for thoracic surgery |
| CN107167269A (en) * | 2017-06-01 | 2017-09-15 | 陈畅 | A kind of strain-type electronic dynamometer |
| CN208091808U (en) * | 2018-03-21 | 2018-11-13 | 国网上海市电力公司 | A kind of secondary small line terminal strength testing tool of electric system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088523A (en) * | 2021-11-17 | 2022-02-25 | 广东溢达纺织有限公司 | Brute force value monitoring system, brute force value monitoring method, brute force value monitoring device and computer equipment |
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